Envelop-fastener.



G. W. LOGAN.

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1,077,616; Patented Nov. 4,1913.

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ENVELOP FASTENER- APPLICATION FILED JUNE 9, 1911.

Patented N0v.4, 1913.

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geoge (UT Jbganr W M/ W GEORGE W. LOGAN, OF STEUBENVILLE, OHIO.

ENVELOP-FASTENEB.

Specification of Letters Patent.

Patented Nov. 4, 1913.

Application filed June 9, 1911. Serial No. 632,210.

To all whom it may concern:

Be it known that I, GEORGE W. LOGAN, citizen of the United States, residing at Steubenville, in the county of Jefierson and State of Ohio, have invented certain new and useful Improvements in Envelop-Fasteners, of which the following is a specification.

This invention relates to improvements in envelops and the object thereof is to provide an envelop which cannot be opened without detection, and which will be simple and efficient and inexpensive to manufacture.

With the above and other objects in view my invention consists in the combination, arrangement, and details of construction disclosed in the drawings and specification and then more specifically pointed out in the appended claims.

In the drawings wherein similar reference characters designate similar parts in the several views, Figure 1 is a front elevation of my envelop, Fig. 2 is a view similar to Fig. 1 with one side of the envelop broken away and turned down to reveal the catch device, Fig. 3 is a plan of the blank portion of the catch device which is attached to the upper flap of the envelop, Fig. at is a perspective view of Fig. 3 showing the blank formed into a fastener, Fig. 5 is a perspective of an eye cooperating with the fastener, Fig. 6 is a vertical section of the envelop on the line XX of Fig. 1, showing the fastener released, Fig. 7 is avertical section similar to Fig. 6, showing the fastener in operative position, and Fig. 8 is an elevation of a sealed envelop.

Referring to the drawings which are merely illustrative of my invention, 1 is an envelop or the like adapted to receive a fastener to be now described, 2 indicates the flap of the envelop to which is secured the fastener 3, said flap being adapted to lie under the opposite side of the envelop. The fastener 3 is preferably made of sheet metal and will be stamped so as to form the blank shown in Fig. 3. The main body of the fastener is formed at opposite sides with the rightangular pieces a and 5. The cross-piece 4 is formed integrally and at opposite points with the right-angular prongs 4 and P respectively, and cross piece 5 is similarly formed with the prongs 5* and 5 The pair of prongs r and 4 and 5 and 5 are returned over the cross-pieces i and 5' respectively so as to be readily inserted into the flap and bent back, as shown in Figs. 6 and 7 The main body of the fastener consists of the prolongations 6 and 8, the latter being a tab by means of which the flap may be properly set, and the former being divided into two parts 6 and 6 respectively upon which are formed hooks. The cut-away portion 7 is bent to project at an angle toward said hooks, as shown in Fig. 4.

By means of tab 8, the fastener 3 and flap 2 are caused to occupy a position alongside of the eye 9, shown in Fig. 6, so that by an upward movement, the hooks 6 and 6* may engage said eye, and then tab 8 is bent over the edge of the side of the envelop carrying the eye 9, to prevent the disengagement of said hooks. The eye 9 is made out of a sheet metal blank and is formed with the returned portions 9 and 9 which are inserted into the side of the envelop and then bent back. If desired the reinforcing pieces 10 and 11 may be used as a backing for the prongs 9 and 9 and 4 and l respectively. The portion 7 frictionally engages the eye 9 when the envelop is sealed.

Numerous modifications may be resorted to in practice without departing in principle from the details of construction herein disclosed.

What I claim is 1. In combination with an envelop, a fastener secured to one side thereof and engaging the other side at its edge and below its edge to seal the contents of the envelop.

2. In an envelop the combination of a flap, a hook mounted on said flap, an eye mounted on the inner face of the opposite side of the envelop, said hook being caused to engage said eye to secure the inner faces of the envelop, and a tab for manipulating said hook, said tab being arranged to secure the edges of said sides.

3. In an envelop, the combination of a flap arranged to lie between the sides of the envelop, a sheet-metal member having integral means for attachment to said flap, a sheet metal eye below the inclosed flap having integral means for attachment to the side opposite the flap, hooks formed upon said member at one end, arranged to engage with said eye, and a tab formed integral with said member at its opposite end for securing the edges of the envelop.

4. In an envelop, in combination, a flap, an eye mounted on one side of the envelop, a member mounted on the flap, two hooks formed on said member arranged to engage In testimony whereof I afiix my signature lgv'ith said eye, tab formed upon said memin presence of two Witnesses. I

er to irect t e ep to a position alon side of said eye, and an angular part formd d on GEORGE LOGAN said member frictionally engaging said eye j WVitnesses: when the hooks are in engagement with the HARRY BOWMAN, latter. EDWARD L. BECKER.

*Ob'pies of this paitent may be 'obt'ainekl for five cents each, by addressing the Commissioner of Patents. Washington, D. 0; 

